Fix S1125: Codefix should set correct condition priority by adding parentheses.

[mary-georgiou-sonarsource]

The statement

obj == null ? false : obj.ToString() == "x" || obj.ToString() == "y";

get fixed to:

!(obj == null) && obj.ToString() == "x" || obj.ToString() == "y";

which throws null exception because the condition is evaluated as (condition1 && conction2) || condition3. (condition1 && conction2) is false and so condition3 will be evaluated.

It should be fixed to:

!(obj == null) && (obj.ToString() == "x" || obj.ToString() == "y");

so that the evaluation is condition1 && (condition2 || condition3) and if condition1 is false then (condition2 || condition3) won't be evaluated at all.